diff --git a/changelog.txt b/changelog.txt
index 280a6516..f67b632b 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -11,6 +11,7 @@ OPENSEADRAGON CHANGELOG
 * The navigationControlAnchor option now works for custom toolbar as well (#1004)
 * Added getFullyLoaded method and "fully-loaded-change" event to TiledImage to know when tiles are fully loaded (#837)
 * Fixed: Initial tile load wasn't happening in parallel (#1014)
+* Added Zoomify tile source (#863)
 
 2.2.1:
 
diff --git a/src/zoomifytilesource.js b/src/zoomifytilesource.js
index 7066db9e..ad6aee52 100644
--- a/src/zoomifytilesource.js
+++ b/src/zoomifytilesource.js
@@ -18,7 +18,7 @@
      *      tilesUrl: "/test/data/zoomify/"
      * }
      *
-     * The tilesize if currently hardcoded to 256. The tileUrl must the the path to the image _directory_.
+     * The tileSize is currently hardcoded to 256 (the usual Zoomify default). The tileUrl must the the path to the image _directory_.
      *
      * 2) Loading image metadata from xml file: (CURRENTLY NOT SUPPORTED)
      *
@@ -87,7 +87,7 @@
         _calculateAbsoluteTileNumber: function(level, x, y) {
             var num = 0;
             var size = {};
-            
+
             //Sum up all tiles below the level we want the number of tiles
             for (var z = 0; z < level; z++) {
                 size = this.gridSize[z];